NOAA S-57 chart cell
Cook Inlet
US4AK4SH
- Usage band
- Approach · code 4
- Current edition
- 1.1
- Features
- 700
- S-57 layers
- 32
- Published
- Aug 14, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 60.60000° N
- South
- 60.30000° N
- West
- 151.80000° W
- East
- 151.20000° W
- Center
- 60.45000° N, 151.50000° W
- Bounds area
- 320 sq nm
- Feature density
- 2.1874 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 21.9
- Smallest layer
- 1
- Largest layer
- 232
- Area sq km
- 1,098
- Features per sq km
- 0.63774
- UWTROC Underwater rock 232
- DEPCNT Depth contour 144
- DEPARE Depth area 135
- SBDARE Seabed area 27
- COALNE Coastline 21
- OBSTRN Obstruction 21
- RIVERS River 19
- SLCONS Shoreline construction 19
- M_QUAL Data quality 17
- LNDRGN Land region 14
- LIGHTS Light 5
- SOUNDG Sounding 5
- BUAARE 4
- CTNARE Caution area 4
- SEAARE Sea area 4
- LNDMRK 3
- MAGVAR Magnetic variation 3
- BOYLAT Lateral buoy 2
- CBLSUB 2
- DAYMAR 2
Nearby Chart Cells
Approach usage band
Current Edition Files
The NOAA ZIP archive is the upstream source for this chart cell; the other files are Open Ships generated derivatives for web and GIS use.
- Original NOAA ZIP archive https://www.charts.noaa.gov/ENCs/US4AK4SH.zip
- S-57 base cell https://charts.openships.ai/noaa/s57/approach/US4AK4SH/1.1/US4AK4SH.000
- S-57 update 001 https://charts.openships.ai/noaa/s57/approach/US4AK4SH/1.1/US4AK4SH.001
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK4SH/1.1/US4AK4SH.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK4SH/1.1/US4AK4SH.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK4SH/1.1/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.1 | Aug 14, 2025 | metadata.json |